# Yoyo CAD & Prototyping Adventures

**URL:** <https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547>\
**Category:** Yo-Yo Mods and Maintenance\
**Created:** [August 7, 2018, 3:40pm UTC](https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547 "2018-08-07T15:40:59Z")\
**Posts on this page:** 20\
**Page:** 81

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**Author:** ![AtomicChessGuy](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/atomicchessguy/32/606394_2.png) [@AtomicChessGuy](https://forums.yoyoexpert.com/u/AtomicChessGuy)\
**Post date:** [July 7, 2024, 3:20pm UTC](https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547/1636 "2024-07-07T15:20:50Z")

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I think that POM minimum wall thickness is 2.5 to 2mm? Don’t quote me on that. 7068 Aluminum can get down to 0.8 mm wall thickness I believe.

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**Author:** ![redativity](https://avatars.discourse-cdn.com/v4/letter/r/4af34b/32.png) [@redativity](https://forums.yoyoexpert.com/u/redativity)\
**Post date:** [July 7, 2024, 3:28pm UTC](https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547/1637 "2024-07-07T15:28:51Z")

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In this design the plastic part doesn’t contribute to the structure of the yoyo. For example if you bang the yoyo into the ground there won’t be any stress on it, so I think it can be made thinner than the usual recommended minimum wall thickness. Honestly the exact measurements don’t really matter at this point because I would have to talk to a machinist to figure out the precise material properties.

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**Author:** ![Captrogers](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/captrogers/32/647012_2.png) [@Captrogers](https://forums.yoyoexpert.com/u/Captrogers)\
**Post date:** [July 7, 2024, 5:49pm UTC](https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547/1638 "2024-07-07T17:49:38Z")

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This looks really neat. No idea if it’s feasible or not but I like it

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**Author:** ![hello](https://avatars.discourse-cdn.com/v4/letter/h/7993a0/32.png) [@hello](https://forums.yoyoexpert.com/u/hello)\
**Post date:** [July 8, 2024, 4:16am UTC](https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547/1639 "2024-07-08T04:16:21Z")

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My design is done!

 ![image](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/e/9/3/e9351e13094bdf620bba576cf28a15c042cd3ee1.png)  
 ![image](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/a/1/0/a102716a6d3f3604158646c1e2beb9af586a893e.jpeg)  
 ![image](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/b/2/d/b2d7932119bc06ac7d635388fe8304a71d0e9b4c.png)  
here are the specs:  
56.0267009554mm diameter

53.00826 mm width

66.4347714427g

Bimetal

6061 aluminum

400 series stainless steel

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**Author:** ![redzaku](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/redzaku/32/231660_2.png) [@redzaku](https://forums.yoyoexpert.com/u/redzaku)\
**Post date:** [July 8, 2024, 6:26am UTC](https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547/1640 "2024-07-08T06:26:08Z")

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congrats! keep it up

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**Author:** ![MarkD](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/markd/32/40845_2.png) [@MarkD](https://forums.yoyoexpert.com/u/MarkD)\
**Post date:** [July 8, 2024, 2:34pm UTC](https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547/1641 "2024-07-08T14:34:30Z")

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This looks lovely, nice work!

My only recommendation is to add a flat stop here (red squares) so that the “caps” can be pressed in fully to the set depth. Otherwise you’d likely have a pretty variable gap width after assembly.

 ![image](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/e/f/7/ef7332f61040b75c6f53c86c6c7306aac6186b37.png)

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<div class="post-metadata">

**Author:** ![hello](https://avatars.discourse-cdn.com/v4/letter/h/7993a0/32.png) [@hello](https://forums.yoyoexpert.com/u/hello)\
**Post date:** [July 8, 2024, 2:58pm UTC](https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547/1642 "2024-07-08T14:58:16Z")

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do you like it?

 ![image](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/0/5/7/057ec5a7a19c851e16c99a68290e7df0d887374f.png)  
 ![image](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/5/e/b/5ebb0cae38008feff96597d948815d4e93a2a6bb.png)

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<div class="post-metadata">

**Author:** ![MarkD](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/markd/32/40845_2.png) [@MarkD](https://forums.yoyoexpert.com/u/MarkD)\
**Post date:** [July 8, 2024, 3:04pm UTC](https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547/1643 "2024-07-08T15:04:59Z")

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The steel ring needs two flat sections to hold it on, one completely horizontal to hold the press fit, and one completely vertical to act as a stop when it’s pressed on.

Make sure all the parts have at least a minimum thickness for machinability as well - for aluminum alloys you’d typically have 1.0 mm to 1.6mm.

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<div class="post-metadata">

**Author:** ![hello](https://avatars.discourse-cdn.com/v4/letter/h/7993a0/32.png) [@hello](https://forums.yoyoexpert.com/u/hello)\
**Post date:** [July 8, 2024, 3:27pm UTC](https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547/1644 "2024-07-08T15:27:45Z")

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thank you!

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**Author:** ![AtomicChessGuy](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/atomicchessguy/32/606394_2.png) [@AtomicChessGuy](https://forums.yoyoexpert.com/u/AtomicChessGuy)\
**Post date:** [July 8, 2024, 3:51pm UTC](https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547/1645 "2024-07-08T15:51:31Z")

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Like this:

 ![image](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/4/b/a/4ba5d82aaf1dc6e0ca8c26797c9ea4a117207f04.jpeg)

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<div class="post-metadata">

**Author:** ![redativity](https://avatars.discourse-cdn.com/v4/letter/r/4af34b/32.png) [@redativity](https://forums.yoyoexpert.com/u/redativity)\
**Post date:** [July 8, 2024, 3:56pm UTC](https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547/1646 "2024-07-08T15:56:26Z")

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That makes sense. How thin do you think the plastic part can be made?

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<div class="post-metadata">

**Author:** ![hello](https://avatars.discourse-cdn.com/v4/letter/h/7993a0/32.png) [@hello](https://forums.yoyoexpert.com/u/hello)\
**Post date:** [July 8, 2024, 4:03pm UTC](https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547/1647 "2024-07-08T16:03:31Z")

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![image](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/6/f/6/6f66f9adb352f5ece9b719c637dc12c8755b0f01.png)  
fixed it

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<div class="post-metadata">

**Author:** ![hello](https://avatars.discourse-cdn.com/v4/letter/h/7993a0/32.png) [@hello](https://forums.yoyoexpert.com/u/hello)\
**Post date:** [July 8, 2024, 4:04pm UTC](https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547/1648 "2024-07-08T16:04:45Z")

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what cad do you use?

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<div class="post-metadata">

**Author:** ![AtomicChessGuy](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/atomicchessguy/32/606394_2.png) [@AtomicChessGuy](https://forums.yoyoexpert.com/u/AtomicChessGuy)\
**Post date:** [July 8, 2024, 4:19pm UTC](https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547/1649 "2024-07-08T16:19:00Z")

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I use Onshape. Make sure to add fillets to all those sharp corners so they wouldn’t cut someone. Also make sure everything is fully constrained. You shouldn’t be able to click on a point and drag it around. It should look like this:

 ![image](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/7/4/b/74b2ab5c125354be2411d76e689f4ab324baed3d.jpeg)  
 ![image](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/c/0/5/c05fbba8e2be004e9ba24a1aeef6468c057c635f.jpeg)

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<div class="post-metadata">

**Author:** ![Captrogers](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/captrogers/32/647012_2.png) [@Captrogers](https://forums.yoyoexpert.com/u/Captrogers)\
**Post date:** [July 8, 2024, 4:20pm UTC](https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547/1650 "2024-07-08T16:20:44Z")

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Or make a finger laceration throw. Always an option I guess

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<div class="post-metadata">

**Author:** ![Lex](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/lex/32/1599_2.png) [@Lex](https://forums.yoyoexpert.com/u/Lex)\
**Post date:** [July 8, 2024, 4:56pm UTC](https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547/1651 "2024-07-08T16:56:39Z")

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I would suggest you watch the videos AtomicChessGuy sent you earlier. You’ll save a bunch of time rather than tweaking the design, asking for feedback and getting told the fundamentals again from these videos.

> [@AtomicChessGuy](#):
>
> I recommend watching this series:
> 
> or this series:
> 
> Onshape is a good tool to use to design yo-yos. It is what I use. I use fusion 360 to render them.

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<div class="post-metadata">

**Author:** ![AtomicChessGuy](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/atomicchessguy/32/606394_2.png) [@AtomicChessGuy](https://forums.yoyoexpert.com/u/AtomicChessGuy)\
**Post date:** [July 8, 2024, 9:38pm UTC](https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547/1652 "2024-07-08T21:38:39Z")

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![image](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/c/b/a/cbad27c6051554793f2442dd86fddde05a299d7e.jpeg)

 ![String_Catching_Grooves_7075_Silver_Front](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/e/6/6/e663de2651569d9524abc3cd0f88b91309d4eac8.jpeg)

 ![String_Catching_Grooves_7075_Silver_Isometric](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/3/c/e/3ce7e6c19bafe85a8d5a6524340fd9f9730a1c26.jpeg)

 ![String_Catching_Grooves_7075_Pumpkin_Front](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/e/2/0/e20731a49c4c8f2f2787243b0d4dc4bc39e9645b.jpeg)

 ![String_Catching_Grooves_7075_Pumpkin_Isometric](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/5/d/2/5d2338ddb6079ddfd12e3c181260ba40aed39c07.jpeg)

 ![String_Catching_Grooves_7075_GlossyBlue_Front](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/d/b/2/db2b75f5a5b898a9fc5ab861e95f878d7eae26b4.jpeg)

 ![String_Catching_Grooves_7075_GlossyBlue_Isometric](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/2/d/e/2dec71ddf7505375b58d9b46cb6e5d6c9f069df9.jpeg)

 ![String_Catching_Grooves_7075_BlastedAqua_Front](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/e/9/1/e918f03a719dc89d766c34ef79213e386e4794ac.jpeg)

 ![String_Catching_Grooves_7075_BlastedAqua_Isometric](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/2/0/d/20d5eb23aadd7053eda2ed61d1d86a61d055e3d5.jpeg)

 ![String_Catching_Grooves_7075_Black_Front](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/a/5/c/a5c50640ddbd2f4ca096ecc416f1620a62170ca4.jpeg)

 ![String_Catching_Grooves_7075_Black_Isometric](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/1/f/0/1f09a3079d11d307f36c912fe8dcabab93c180eb.jpeg)

Specs:  
Width: 48mm  
Diameter: 56mm  
Half Weight: 30.014gms  
Assembled Weight: 62.929gms  
MMOI: 14776  
Axle: M4 x 8mm x 0.7  
Bearing: Size C

Thoughts/Criticism?

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<div class="post-metadata">

**Author:** ![FrankDeath](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/frankdeath/32/271970_2.png) [@FrankDeath](https://forums.yoyoexpert.com/u/FrankDeath)\
**Post date:** [July 8, 2024, 10:03pm UTC](https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547/1653 "2024-07-08T22:03:50Z")

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If the string gets caught in one of the grooves, the yo-yo stops spinning, right?

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<div class="post-metadata">

**Author:** ![AtomicChessGuy](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/atomicchessguy/32/606394_2.png) [@AtomicChessGuy](https://forums.yoyoexpert.com/u/AtomicChessGuy)\
**Post date:** [July 8, 2024, 10:18pm UTC](https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547/1654 "2024-07-08T22:18:59Z")

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I’m actually not sure. I think what would happen is that the string would land in a groove and begin to tilt the yoyo off axis but I don’t know anything for certain. Might be a fun yoyo to play with or it might be completely terrible.

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<div class="post-metadata">

**Author:** ![FrankDeath](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/frankdeath/32/271970_2.png) [@FrankDeath](https://forums.yoyoexpert.com/u/FrankDeath)\
**Post date:** [July 8, 2024, 10:41pm UTC](https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547/1655 "2024-07-08T22:41:41Z")

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It looks cool, but I would wait for reviews before buying one like it

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